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f33819fb52ed0d689590553517e2391c1
2011-03-14 06:55:00

Just as some drivers obey the speed limit while others treat every road as if it were the Autobahn, some stars move through space faster than others.


Word of the Day
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
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